High efficiency perovskite solar cells using nitrogen-doped graphene/ZnO nanorod composite as an electron transport layer

Chandrasekhar, P. S.; Dubey, Ashish; Qiao, Qiquan

doi:10.1016/j.solener.2019.12.062

Cited by 83 publications

(41 citation statements)

References 38 publications

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“…Researchers have started operating on ZnO as an ETL for PSC applications as an alternative to the TiO 2 in which F I G U R E 8 Schematic illustration of PSC having an architecture of FTO/N-doped graphene-ZnO NR composite/ CH 3 NH 3 PbI 3 /Spiro-OMeTAD/Ag. 90 ZnO retains UV exposure stability. In addition, ZnO has few advantages to offer including lower temperature treatment, which is applicable for flexible devices as well as better electron mobility as compared with TiO 2 .…”

Section: Zinc Oxidementioning

confidence: 97%

“…Performances of the devices with PCBM and PCBM:GQDs ETL under continuous solar illumination in the glove box and measured in air (~45% humidity) 90 . ETL, electron transport layer; GQD, graphene quantum dot; PCBM, [6,6]‐phenyl‐C 61 ‐butyric acid methyl ester [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Electron Transport Materialsmentioning

confidence: 99%

“…PCBM is fullerene-based electron acceptors that require simple solution and low-temperature procedure shows F I G U R E 1 0 Performances of the devices with PCBM and PCBM:GQDs ETL under continuous solar illumination in the glove box and measured in air (45% humidity). 90 ETL, electron transport layer; GQD, graphene quantum dot; PCBM, [6,6]-phenyl-C 61 -butyric acid methyl ester [Colour figure can be viewed at wileyonlinelibrary.com] UV-light stability, make it attractive alternative ETL in PSC device to replace inorganic transport materials often used for the planar device architecture. PCBM, which has small molecules, is effectively passivating deep traps at the surface and grain boundaries of perovskite material, thereby effectively collect photogenerated electrons from the perovskite material, thus inhibiting the possible charge recombination and device hysteresis.…”

Section: [66]-phenyl-c 61 -Butyric Acid Methyl Estermentioning

confidence: 99%

“…Chandrasekhar et al 89 incorporating different graphene concentrations onto ZnO as ETL in MAPbI 3 ‐based device via a simple spray deposition method and obtained the highest PCE of 10.34% for the optimum concentration of 0.75 wt% G‐ZnO nanocomposites. Later in 2020, Chandrasekhar et al 90 modified integration of G in as‐prepared ZnO nanorod ETL by introducing nitrogen‐doped graphene (refer Figure 8) using a hydrothermal treatment which produced PCE 16.82% with optimum concentration of 0.8 wt% NG‐ZnO NR NCs. Along with the increment of graphene's concentration adsorbs in ZnO, the perovskite crystal grain size improved, which indicates that the graphene is playing an essential role in the better growth of perovskite thin film.…”

Section: Electron Transport Materialsmentioning

confidence: 99%

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Recent progress of graphene‐based materials for efficient charge transfer and device performance stability in perovskite solar cells

et al. 2020

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Summary The relevance of graphene‐based materials throughout the niche area of perovskite solar cells (PSCs) is indeed the main focus of this review. Specific properties of two types of solar cell materials, namely hybrid perovskites and graphene‐based materials are at the core of significant breakthroughs in a wide range of applications. The specific features of graphene‐based materials, along with their unique properties, have been utilized mainly in the development of photovoltaic devices. PSCs are known to have promising device performance and surpass other third‐generation solar cells, including organic photovoltaics, quantum dot solar cells, and dye‐sensitized solar cells. However, PSCs address several limitations in the device mechanism and material stability. PSCs performance tends to deplete over time due to several factors such as the degradation of materials used in the device caused by exposure of thermal and moisture, as well as an undesired chemical reaction in the interfaces. Several experimental studies, especially on the integration of carbon materials, including the graphene, have been extensively explored. The integration of graphene‐based materials is one of the potential methods for altering and modifying components in PSCs, including perovskite structure and charges transport layers. Therefore, this review gives an overview of recent progress in the development of PSCs with the integration of graphene‐based materials. The emphasis will be on the influence brought by graphene‐based materials on the charge transport mechanism at the interfaces and perovskite morphology toward the improvement of photovoltaic performance and stability.

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Section: Zinc Oxidementioning

confidence: 97%

Section: Electron Transport Materialsmentioning

confidence: 99%

Section: [66]-phenyl-c 61 -Butyric Acid Methyl Estermentioning

confidence: 99%

Section: Electron Transport Materialsmentioning

confidence: 99%

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Recent progress of graphene‐based materials for efficient charge transfer and device performance stability in perovskite solar cells

et al. 2020

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“…103,104 The optoelectronic properties of n-type semiconducting ZnO, such as a suitable conduction band energy level (BÀ4.17 eV for the CBM), large optical bandgap of 3.3 eV, high electronic mobility and high transmittance, are promising for applications in PSCs. [105][106][107] In addition, the low-temperature processed ZnO nanocrystalline thin films are favourable for flexible devices. 64 Nevertheless, ZnO could cause decomposition of organometal halide perovskites, which may impede its largescale application in PSCs.…”

Section: Electron Transport Materials In Pscsmentioning

confidence: 99%

Advances in design engineering and merits of electron transporting layers in perovskite solar cells

et al. 2020

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Emerging Perovskite Solar Cell Technology: Remedial Actions for the Foremost Challenges

Sahare

Pham

Angmo

et al. 2021

Advanced Energy Materials

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Perovskite solar cells (PSCs) exhibit the steepest growth in power conversion efficiency among the existing photovoltaic technologies. However, a wide range of factors restrict the commercial viability of PSCs as a renewable energy source. This article reviews the latest progress in PSC devices including innovative light‐harvesting perovskite materials and advanced interfacial layers, and the foremost challenges. The most promising remedial solutions to challenges are also discussed. For the realization of a high performing and eco‐friendly stabilized perovskite photovoltaic device, a combinational method involving multiple restorative solutions is required. A specific emphasis is given to unveiling interesting perovskite properties, and device fabrication approaches to the solutions. These remedies and strategies may help researchers to select appropriate methods and design their experiments to obtain a high photo‐conversion efficiency in photovoltaic devices with enhanced stability as compared to conventional photovoltaic devices.

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High efficiency perovskite solar cells using nitrogen-doped graphene/ZnO nanorod composite as an electron transport layer

Cited by 83 publications

References 38 publications

Recent progress of graphene‐based materials for efficient charge transfer and device performance stability in perovskite solar cells

Recent progress of graphene‐based materials for efficient charge transfer and device performance stability in perovskite solar cells

Advances in design engineering and merits of electron transporting layers in perovskite solar cells

Emerging Perovskite Solar Cell Technology: Remedial Actions for the Foremost Challenges

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